Mold mechanism for glass-blowing machines.



B; D. CHAMBERL|N.

MOLD MECHANISM FOR GLASS BLOWI NG MACHI NES.

' APPLICATION man AUG.24. 1912.

1,156,056. Patent ed Oct. 12, 1915.-

2 SHEETS-SHEET I.

' Allorney.

B. D. CHAM BERLIN.

MOLD MECHANISM FOR GLASS BLOWING MACHINES.

APPLICATION FILED AUG-24. 1912.

1,156,056. Patented Oct. 12, 1915.

2 SHEETSSHEET 2.

jfa .I'

'' '0 ga if" Allo ne WITNESSES STATES PA OFFICE.

BENJAMIN DAY CHAMBERLIN, OF CORNING, NEW YORK, ASSIGNOR TO EMPIRE MACHINE COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

MOLD MECHANISM FOR GLASS-BLOWING MACHINES.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Original application'fllcd March 23, 1910, Serial No. 551,198. Divided and this application filed August 24,

" g 1912. Serial No. 716,916. i

To all whom it may concern:

Be it known that I, BENJAMIN D. CHAM- BERLIN, a citizen of the United States of America, and a resident of Corning, county of Steuben, and State of New York, have invented certain new and useful Improvements in Mold Mechanisms for Glass-Blowing Machines, of which the following is a specification.

This application, which is a division of my prior application, Serial Number 551,198, filed March 23, 1910, for improvements in the production of glass articles, relates to a new and improved mold mechanism for glass blowing machines, and especially to the means for closing the mold through a yielding connection, whereby breakage of the molds is prevented if their full closing is obstructed and whereby the molds are opened at proper times, and for these purposes my invention consists in the construction, arrangement and combination of the several parts of which it is composed,

as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings in which corresponding parts are desig-v nated by corresponding marks of reference: Figure 1 is a vertical transverse section through the base of a glass blowing machine, to which my improved mold is ap plied. Fig. 2 is a horizontal section on line afi-aa thereof. Fig. 3 is a detail of the mold dipping mechanism. Fig. 4 is a perspective view of the mold mechanism. Fig. 5 is an inverted plan view thereof. Fig. 6 is a detached perspective view of certain parts thereof- The type of machine, to which my improved mold is shown as' applied comprises a suitable, base 1, having a vertical tubular standard 2 arising from the to thereof, these parts serving as guides an bearings for a sleeve 3, having rigidly attached to its I lower end a mold supporting spider, 4, and to e its upper end proper devices for holding and positioning a blow-pipe 22, as'is fully de- ..'scribed and shown in my original application before referred to.

While the base 1 is by preference mounted on wheels, as shown, the term stationary is applicable thereto (in that in the operation of the machine it has no movement) in contradistinction to the spider 4, which 'spectively and the pivot bolt 39." A

in operation revolves around the vertical axis formed by the standard 2.

The weight of sleeve 3 and the parts carried thereon is supported on a thrust hearing consisting of balls 3 contained in an annular groove .in the bottom of the sleeve and in a corresponding groove in the upper face of a shoulder 1- surrounding the base lower end of the standard and meshing with a beveled pinion 6 (Fig. 2) contained in a pocket 1 in the base 1 and mounted on a horizontal shaft 6 driven through reducing gearing 6 by a suitable motor 6', supported on an extension 1 of the frame 1. In this manner the sleeve and parts thereon are.

caused to revolve around the standard as a v center with an angular velocity determined by the speed of the motor, which should be ad usted to cause the proper functioning of the machine as'will be hereinafter described. The spider 4 fast on the lower end of the sleeve 3 comprises'a central hub 4 and a series of radial arms 4* (shown as eight in number).

Each of the spider arms-4 is radially bored to form a bearing for a tubular shaft 38 rotatable therein, such shaft terminating beyond the arm in a cross head 38, to the one end of which cross head (the forward end) the two halves of a separable mold 39 are pivoted by their ears '39 and 39 re- 40 is formed upon the tubular shaft and is in mesh with the rack 40 sliding in an in- .clined guide 40 in the spider arm, the lower end of the rack being inclined forwardly and carrying a roller 40 runnin upon the crown of a concentric cam track upon or attached to the base 1, so that in the rotation of the spider with the sleeve 3,

the roller running upon the cam track will gear 0 formed so shift the rack as to reciprocatingly rotate the tubular shaft and will impart such motion to the mold parts carried by the outer end thereof as will-cause them to hang below the tubular shaft with the axes of their mold cavities horizontal or will cause them to swing upwardly and assume a position in which the axes of their mold cavities will be vertical.

Within the tubular shaft 38 is contained the rotatable horizontally reciprocating shaft 41 having fast upon its inner end a collar 41 having separable flanges 41 and 41, in the channel between which is rotatably mounted a disk 41 which has on one part of. its periphery a stud roller 41 which is located in a cam track 44 in an annular casting 44 mounted upon the base 1. Rotation of the disk 41* is prevented by the bifurcated extension 41 upon the disk, which extension straddles the web of the arm 4 of the spider, thus holding the roller '41 in the cam track. The outer end of the shaft 41 which projects beyond the tubular shaft 38 carries a cross head 41 slidably mounted thereon and normally held at its outer limit of movement against the set nuts 41 by a spiral spring 41 interposed between it and a washer 41 mounted upon the shaft 41. One end of the cross head 41 is connected by a link 42 with the rearward extension of one of the ears 39 of one part of the mold and the other end of the cross head is connected by a link 43 with one end of a bell crank lever 43 pivoted to the rearward extension of the cross head 38 on the tubular shaft 38, the other end of such lever being connected by a link 43 with one of the ears 39 of the other half of the mold, so that when the reciprocating shaft 41 is by the cam track 44 projected outwardly such movement will be communicated to the link 42 and directly swing inwardly half of the mold on the pivot bolt 39 to close and will through the link 43, bell crank 43 and link 43 be also transmitted to the other half of the mold tothrow it outwardly upon the pivot bolt to close. The terms'outwardly v and inwardly here used have reference to the movement of the mold parts as measured from the vertical axis of the machine. The shape of the cam 44 is such that the molds are opened at all times when the axes of their central mold cavities are horizontal and are closed and reopened when the molds have been so swung that the axes of such cavities are vertical.

A cooling tank 45 is attached to the side of the base and extends in an arc of a circle on that side thereof at which the molds are lowered and raised, so that when properly filled with water, the molds will travel tracks mounted thereon results in a lowering of the mold parts into the tank 45 by the cam track 40 to cool them; and in a lifting of the molds by the same track; in a closing of the mold parts by the cam track 44 on a gather, the gather being positioned by a blow-pipe and after a proper time to permit the formation of the blown articles, by an opening of the mold parts taking place while they are lifted.-

Inasmuch as this application has been filed in response to a requirement from the Office as a division of my aforesaid original application, No. 551,198 to contain claims upon the mold-actuating mechanism, the claims hereof are so restricted, and I reserve right to make claims to other features which may be shown herein in my aforesaid original application.

Having thus described my invention what I claim is:

1. In a glass molding machine, the combination with a rotary tubular shaft having separable mold parts carried thereby, a shaft reciprocating within the tubular shaft and connected to the mold halves to close the same, means to rotate the tubular shaft to lift the mold, and means constantly controlling the position of the shaft within the tubular shaft and to reciprocate the same therein to close and open the mold.

2. In a glass molding machine, the combination with a cam track, of a rotary tubu lar shaft movable angularly thereover, mold parts carried by the shaft, a shaft reciprocating within the tubular shaft, and connected to the mold halves to close the same, and a member mounted on the reciprocating shaft and having a constant engagement with the cam, to control the movements of the former.

3. In a glass-blowing machine, the combination with a rotary tubular shaft, of separable mold parts carried to one side of the axis thereof, of a shaft reciprocating within the tubular shaft and connected to the mold parts to close the same, means to rotate the tubular shaft to lift the mold, and means constantly controlling the position of the shaft within the tubular shaft, and to reciprocate the safne therein to close and open the mold parts.

In testimony whereof I have signed my name in presence of two Witnesses.

BENJAMIN DAY CHAMBERLIN.

In presence of FRED C. CAMERGN, G. WILLIS DRAKE. 

